CVE-2026-0297 GlobalProtect App: Buffer Overflow Vulnerability during UDP Tunnel Handshake

What is CVE-2026-0297?

CVE-2026-0297 is a medium-severity memory corruption vulnerability in Palo Alto Networks GlobalProtect App, published on 13 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A buffer overflow vulnerability exists in the Palo Alto Networks GlobalProtect™ app that enables a man-in-the-middle (MitM) attacker or a rogue gateway to disrupt system processes and potentially execute arbitrary code with elevated privileges (SYSTEM privileges on Windows, and root privileges on macOS and Linux).

Weakness: CWE-787

Which versions are affected by CVE-2026-0297?

It affects 1 product.

Products include Paloaltonetworks Globalprotect.

How do I fix CVE-2026-0297?

No fix has been published for CVE-2026-0297 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-0297 being exploited?

There is no known exploitation of CVE-2026-0297 in the wild and no public exploit code.

Other vulnerabilities in Palo Alto Networks GlobalProtect App

• CVE-2025-4232 GlobalProtect: Authenticated Code Injection Through Wildcard on macOS High 8.5
• CVE-2021-3057 GlobalProtect App: Buffer Overflow Vulnerability When Connecting to Portal or Gateway High 8.1
• CVE-2023-0009 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability High 7.8
• CVE-2022-0016 GlobalProtect App: Privilege Escalation Vulnerability When Using Connect Before Logon High 7.4
• CVE-2025-0120 GlobalProtect App: Local Privilege Escalation (PE) Vulnerability High 7.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-pc3v-5r9c-7gm7.